A positive thrust angle will try to steer the vehicle to the left, while a negative thrust angle will try to steer the vehicle to the right. This will cause the driver to pull the steering wheel right or left to compensate.

What happens if thrust angle is misaligned?

The thrust angle can determine the straight-ahead position of the front wheels. So ignoring this angle can undermine even the most accurately aligned front suspension. It can result in a crooked steering wheel as the front wheels steer to align themselves with the front wheels.

What happens if rear thrust angle is misaligned?

A misaligned thrust angle may also cause diagonal wear on the rear tires and increase the chance the vehicle pulls or drifts to one direction. To eliminate the thrust angle, realigning the rear axle or rear toe is necessary. If bent or damaged parts are responsible, these must be replaced.